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runtime, ludic.ui: a scalar Value is one allocation, not three (lists only for a list or an object); layout and cascade lists kept a depth; small numbers' text made once - benchmark 63 -> 36 KB a frame

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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-27 23:43:25 +03:00
parent 1d40f6d95a
commit 46888b6716
14 changed files with 84 additions and 33 deletions
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17
packages/ludic.ui/layout_run.ludic
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@ -41,7 +41,9 @@ function ly_place_line(ui_st: mut UiState, n: UiNode, from: int, to: int, top: f
var used = 0.0
var grows = 0.0
var count = 0
let sizes = new []float
let depth = ui_st.ly_depth
ui_st.ly_depth += 1
let sizes = ly_scratch(ui_st, depth)
for i in from .. to {
push(sizes, ly_basis(n.children[i], n.dir, main_room))
if n.children[i].pos < 2 {
@ -52,7 +54,7 @@ function ly_place_line(ui_st: mut UiState, n: UiNode, from: int, to: int, top: f
}
used = used + n.gap * float(Math.max(count - 1, 0))
let free = main_room - used
if free < 0.0 { ly_shrink_line(n, from, sizes, 0.0 - free) }
if free < 0.0 { ly_shrink_line(ui_st, depth, n, from, sizes, 0.0 - free) }
ly_justify(ui_st, n, free, count, grows)
let extra = ui_st.ly_extra
var at = ui_st.ly_lead
@ -65,6 +67,17 @@ function ly_place_line(ui_st: mut UiState, n: UiNode, from: int, to: int, top: f
if c.pos == 1 { ly_nudge(n, c) }
at = at + m + n.gap + extra
}
ui_st.ly_depth = depth
}
# a line's sizes, and its shrink's frozen flags, in lists kept one a depth (a line's children lay out
# their own lines while it is still placing them), emptied rather than made anew
function ly_scratch(ui_st: mut UiState, depth: int) -> []float {
while len(ui_st.ly_sizes) <= depth {
push(ui_st.ly_sizes, new []float)
push(ui_st.ly_frozen, new []bool)
}
List.clear(ui_st.ly_sizes[depth])
return ui_st.ly_sizes[depth]
}
# one child: `m` along the run and its own size (or the whole room, stretched) across, less margins
function ly_place_child(ui_st: mut UiState, n: UiNode, c: UiNode, at: float, top: float, m: float, cross_room: float) -> void {